353 citations · 888 across the 7 of their papers we have counts for
7 papers
Orbital periods of twenty two subdwarf B stars
L. Morales-Rueda, P. F. L. Maxted, T. R. Marsh +2
Subdwarf B (sdB) stars are thought to be core helium burning stars with low mass hydrogen envelopes. In recent years it has become clear that many sdB stars lose their hydrogen thr…
Photometry of four binary subdwarf B stars and the nature of their unseen companion stars
P. F. L. Maxted, T. R. Marsh, U. Heber +3
We present lightcurves of four binary subdwarf B stars, Ton 245, Feige 11, PG1432+159 and PG1017-086. We also present new spectroscopic data for PG1017-086 from which we derive its…
The systemic velocities of four long-period cataclysmic variable stars
R. C. North, T. R. Marsh, U. Kolb +2
Although a large number of orbital periods of cataclysmic variable stars (CVs) have been measured, comparison of period and luminosity distributions with evolutionary theory is aff…
The binary fraction of extreme horizontal branch stars
P. F. L. Maxted, U. Heber, T. R. Marsh +1
(Abbreviated) We have used precise radial velocity measurements of subdwarf-B stars from the Palomar-Green catalogue to look for binary extreme horizontal branch (EHB) stars. We id…
Mapping the peculiar binary GP Com
L. Morales-Rueda, T. R. Marsh, R. C. North
We present high resolution spectra of the AM CVn helium binary GP Com at two different wavelength ranges. The spectra show the same flaring behaviour observed in previous UV and op…
KPD1930+2752 - a candidate Type Ia supernova progenitor
P. F. L. Maxted, T. R. Marsh, R. C. North
We present spectra of the pulsating sdB star KPD1930+2752 which confirm that this star is a binary. The radial velocities measured from the H-alpha and HeI6678 spectral lines vary…